Calcutron 5000 is a JavaScript calculator with a vintage styling. It is inspired by the big, bulky, ugly beige calculators of the 1980’s, complete with chunky keys and loud keypresses. Designing Calcutron was part of a DailyUI challenge. The original CodePen concept is here:

Since then, I have been refining and improving Calcutron by cleaning up its interface to be fully responsive across almost all screen sizes. Additionally the layout has been rearranged, keypress sounds have been added, and the JavaScript calculations have been improved.